CN116070811A - Flight around discriminating processing method, system and storage medium based on flight path - Google Patents
Flight around discriminating processing method, system and storage medium based on flight path Download PDFInfo
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Abstract
The invention relates to the technical field of weather prediction, and discloses a flight around distinguishing and processing method, a system and a storage medium based on a flight path. The method comprises the following steps: preprocessing flight path data to construct a flight path background field: dividing a plurality of grids based on the flight path background field; the flight around flight discriminating process based on the flight path improves the accuracy and discriminating efficiency of the aircraft around flight discrimination.
Description
Technical Field
The invention relates to the technical field of round-the-fly screening, in particular to a flight round-the-fly discriminating processing method, a system and a storage medium based on a flight path.
Background
In recent years, the aviation transportation industry of China rapidly develops, and the aviation transportation amount is stabilized in the second world, and the rapidly-increased air traffic flow aggravates the operation pressure of an air traffic control system and drives the air traffic control operation to be converted to digital and intelligent directions.
When air traffic is controlled, the operation of a flight route needs to be judged, and whether the flight deviates from the route for winding flight is judged to be the basis of controlling command, flow control and post analysis. In general, an aircraft always completes a flight from a start point to an end point as quickly as possible in the air, and the behavior deviating from a normal course occurring during the flight may be a detour, which may be due to weather, temporary flow control, military, and other reasons. In the prior art, the conventional processing operation for judging the winding flight mainly comprises manual judgment of a control person, and has strong subjectivity and high randomness. Another processing method for judging the detour is to compare the route plan with the actual flight track of the flight so as to judge that the flight has detour. However, in practice, the airline plans are difficult to obtain, and the actual flights may deviate systematically from the airline plans for a variety of reasons.
Disclosure of Invention
In order to solve the technical problems, the invention provides a flight around flight discriminating processing method, a flight around flight discriminating system and a storage medium based on a flight path, which improve the accuracy and the discriminating efficiency of the aircraft around flight discrimination.
The embodiment of the invention provides a flight around discriminating processing method based on a flight path, which comprises the following steps:
preprocessing flight path data to construct a flight path background field:
dividing a plurality of grids based on the flight path background field, and judging the significance of the navigation directions of the current grids according to the proportion of the track number count and the total track number of the current grids in a preset direction range:
constructing parameters describing the fly-around behavior, and constructing a fly-around discrimination model of the track based on the parameters of the fly-around behavior; and based on the round-the-fly discrimination model of the flight path, carrying out discrimination processing operation on the round-the-fly of the current aircraft.
Preferably, the preprocessing of the track data to construct a flight path background field specifically includes the following steps:
preprocessing track data: performing track splicing on the discrete track data by using the flight number and the aircraft number, and then splitting the track points in the same track for more than 10 minutes to obtain a plurality of split track points;
meanwhile, the spliced flight path is screened and selected to select the part with the flight height above the preset height;
and constructing a flight path background field on a plane based on the plurality of spliced tracks after screening.
Preferably, the preset height is 3000 m.
Preferably, a plurality of grids are divided based on the flying trace background field, and the significance of the navigation directions of the current grids is judged according to the proportion of the track number count and the total track number of the current grids in the preset direction range:
if the track number of the grid is lower than 4 per month, the grid is considered to be an area with few flights to fly;
if the track number of the grid is lower than 20 tracks/month, the grid is considered to be a small number of flight path areas, and if the count of a certain direction range exceeds 75% of the total track number, the grid is considered to be a grid with obvious navigation directions;
if the track number of the grid is higher than or equal to 20 per month, the grid is considered to be a more flight path area;
in the following 4 cases, this (current) grid is considered to be a grid with significant sailing direction; a certain direction range count exceeds 75% of the total track number; counting more than 80% of total track number in certain two direction ranges; counting more than 85% of total track number in a certain three-direction range; a certain four direction range count exceeds 90% of the total track number.
Other cases consider that this grid (i.e., the current grid) has no significant heading;
preferably, the constructing a parameter describing the fly-around behavior, and constructing a fly-around discrimination model of the track based on the parameter of the fly-around behavior, includes the following operation steps:
defining a winding flight coefficient as a winding flight parameter: according to any plurality of track points on the track, defining the flight winding coefficient Ir from any track A to another track point on the flight, and by the pushing, determining the maximum value of the flight winding coefficient among different points in one section of track as the flight winding coefficient Ira of the track;
defining course continuity deviation as a parameter of a round-trip flight based on a track: determining the flight direction of the aircraft on different track points, and defining the difference between the flight direction of one track point and the flight direction of the other track point as course continuity deviation;
defining the course actual deviation based on the actual flight path as a primary flight as a parameter: and judging the actual flight direction and the actual flight path of the aircraft, determining the actual flight direction at any two points on the actual flight path, and defining the difference between the two directions as the actual heading deviation.
Preferably, before the screening processing operation is performed on the winding flight of the current aircraft based on the winding flight discrimination model of the track, the method further comprises:
initial judgment is carried out according to the winding flight coefficient Ira of the current track, and whether the whole track is a normal track is determined:
determining the winding coefficient Ira of the current track, if the winding coefficient Ira of the current track is smaller than the standard winding coefficient threshold value, considering the whole track as a normal track, and then screening and finding out points AD of which the value of the winding coefficient Ira in other tracks is larger than the standard winding coefficient threshold value and the point AD is not the point in the middle between the two points with larger Ir values, and performing the operation of further judging and screening the abnormal track;
preferably, the method for discriminating the round-the-air of the current aircraft based on the round-the-air discriminating model of the track includes:
further screening and judging, if the distance between the points AD is less than 50 km or no points which are more than 30 km away from the connecting line of the points AD exist between the points AD, determining that the current two points are part of navigation behaviors of the aircraft in hovering for filtering;
further screening and judging, and screening out a point AD with the continuous heading deviation and the actual heading deviation of the point AD being greater than 30 degrees, and determining that the point A to the point D possibly have a wraparound phenomenon;
further judging that if the deviation of the heading of the actual track point from the point A to the point D and the angle of the background flight direction is smaller than or equal to a standard threshold value, the detouring from the point A to the point D is considered to be the detouring behavior caused by the airspace structure, and belongs to the false detouring operation caused by the airspace structure; and if the angle deviation between the heading of the actual track point from the point A to the point D and the background flight direction is greater than a standard threshold value, determining that the detour from the point A to the point D is a 'real detour and detour operation'.
Preferably, the value of the standard wrap-around coefficient threshold is 1.2.
Correspondingly, the invention provides a flight around discriminating processing system based on a flight path, which comprises a background field constructing module, a grid processing module and a model processing module, wherein:
the background field construction module is used for preprocessing the flight path data and constructing a flight path background field:
the grid processing module is used for dividing a plurality of grids based on the flight path background field, and judging the significance of the navigation directions of the current grids according to the proportion of the track number count and the total track number of the current grids in a preset direction range:
the model processing module is used for constructing parameters describing the fly-around behavior and constructing a fly-around discrimination model of the flight path based on the parameters of the fly-around behavior; and based on the round-the-fly discrimination model of the flight path, carrying out discrimination processing operation on the round-the-fly of the current aircraft.
Accordingly, the present invention provides a computer-readable storage medium storing a program or instructions that cause a computer to perform the steps of the track-based flight around determination processing method as described.
The embodiment of the invention has the following technical effects:
the embodiment of the invention provides a flight around discriminating processing system, a method and a storage medium based on a flight path; the flight around judging and processing method based on the flight path comprises the following operation steps: the flight path data is preprocessed, and a flight path background field is constructed: dividing a plurality of grids based on the flight path background field, and judging the significance of the navigation directions of the current grids according to the proportion of the track number count and the total track number of the current grids in a preset direction range: constructing parameters describing the fly-around behavior, and constructing a fly-around discrimination model of the track based on the parameters of the fly-around behavior; and based on the round-the-fly discrimination model of the flight path, carrying out discrimination processing operation on the round-the-fly of the current aircraft.
The flight around flight discriminating process based on the flight path improves the accuracy and discriminating efficiency of the aircraft around flight discrimination.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a main process flow diagram of a flight around discriminating processing method based on a flight path provided by an embodiment of the invention;
fig. 2 is a specific process flow diagram of step S100 in a flight around discriminating processing method based on a flight path according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a specific process in step S300 of a flight around determination processing method based on a flight path according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a flight path of a virtual flight in a flight around determination processing method based on a flight path according to an embodiment of the present invention, where the virtual flight reaches a position D from a via a B, C point;
FIG. 5 is a schematic diagram showing a comparison of actual flight paths of different Ira in a flight around determination processing method based on a flight path according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of heading continuity deviation in a flight around determination processing method based on a flight path according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of actual deviation of a heading in a flight around discriminating processing method based on a flight path according to an embodiment of the present invention;
FIG. 8 is another specific process flow diagram of step S300 in a flight around determination processing method based on tracks according to an embodiment of the present invention;
FIG. 9 is a flowchart illustrating a specific process in step S300 in a flight path-based flight around determination processing method according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a flight around discriminating processing system based on a flight path according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the invention, are within the scope of the invention.
The following describes a flight around discriminating processing method, a flight around discriminating processing system and a storage medium based on a flight path with reference to the accompanying drawings.
Analysis shows that: the aircraft always completes the flight from the start point to the end point as quickly as possible in the air, and the departure from the normal course during the flight may be a round-trip flight, possibly due to weather, possibly due to temporary flow control, and possibly due to other causes such as military.
During further research, it was found that prior to constructing the flight around model, the following assumptions were made: 1. an aircraft that is flying at normal cruising does not make a significant maneuver, i.e., normally, the aircraft will not change its direction of flight suddenly and drastically, unless it is caused by a specific airspace structure in which all flights make the same flight maneuver. 2. An aircraft that is flying at normal cruising does not make extensive off-course "detour" which may be caused under certain airspace configurations, but all flights make the same flight action under certain airspace configurations.
By analyzing the technical scheme, whether the flight is flown around is judged, namely whether the aircraft is subjected to a large-amplitude maneuver is judged, and compared with the condition of detour and the flight track background field, whether the maneuver is sporadic or caused by an airspace structure is judged. Therefore, the flight detour judgment is also actually further carried out on the actual route possibly having the detour phenomenon based on the technical principle of the application, so that the judgment is whether the actual detour operation or the false detour operation caused by the airspace structure is judged.
Fig. 1 is a flowchart of a flight around discriminating processing method based on a flight path according to an embodiment of the present invention. Referring to fig. 1, the flight around discriminating processing method based on the flight path specifically includes:
step S100: preprocessing flight path data to construct a flight path background field: according to the planning, flying according to a fixed route is an essential feature of civil aviation flights. Thus, this embodiment considers that all airlines have "normal flight", i.e., the flight trajectory of most flights without special events such as regulated flow control and without weather effects. In the case of a high probability, flights all fly normally, the directions in space are uniform, i.e. there is a "backdrop" in which flights fly normally. In the case of small probability, the flight is not normally flown when the flight goes around, and the flight direction is obviously deviated from the background field. Therefore, the background field of the flight path is the basis for judging the flight around and avoiding. And constructing a flight track background field, namely analyzing the normal flight condition of the flight by utilizing a large amount of flight data on the airlines, and judging whether the single flight has the condition of winding flight or not by taking the flight data as a standard. The flight around is mainly reflected in the change of the flight direction, so that the flight direction is also mainly used when the analysis of the flight path background field is carried out. In order to analyze the background field, track data is preprocessed;
referring also to fig. 2, preprocessing the flight path data to construct a flight path background field includes the following operations:
step S110: preprocessing track data, namely, performing track splicing on discrete track data by using flight numbers and aircraft numbers, and then splitting track points in the same track for more than 10 minutes to obtain a plurality of split track points (or target track points, and the subsequent processing is analysis processing based on the target track points);
step S120: meanwhile, the spliced flight path prefers a part with the flight height above a preset height (namely, the preset height is 3000 m);
step S130: and constructing a flight path background field on the plane based on the plurality of spliced tracks.
Analysis of the technical scheme shows that after the flight path splicing is carried out, only the flight path spliced by the flight path splicing method remains the flight height of more than 3000 m; the direction and the gesture of the aircraft in the stage of taking off and climbing and approaching landing are excessively adjusted, so that the background field is difficult to determine, and the spliced track only keeps the part with the flight height of more than 3000 meters. The processed flight path is approximately in the area plane flight stage, the flight is stable, and the analysis of a background field is facilitated.
Step S200: the method is characterized in that a plurality of grids are divided based on the flight path background field, the significance of the flight direction of the current grids is judged according to the proportion of the track number count and the total track number in a preset direction range of the current grids (after the grids are divided, the significance of the flight direction of the grids is judged, wherein the flight path background field is constructed according to 10 km resolution grids, the 10 km resolution grids are the resolution of the flight path background field on a satellite map, namely 10 km by 10 km grids are used as a pixel point in the flight path background field, the basic premise of the embodiment of the invention is that an aircraft flies along the air course in the air, and the flight direction is basically fixed, because the space between parallel air courses is at least more than 100 km, under most conditions, the space between the grids of 10 km has only one rough course, if the aircraft is divided according to 10 degrees as a reference division direction, the direction is also 1-2, the aircraft cannot be divided by the same plane, the same plane can be in the same direction as a single division line, the cross direction is also different from the ground, the direction is not applicable to the ground, the situation is not applicable to the cross direction is also the main direction, the situation is not met, and the method is not suitable for the situation of the application is not suitable for the implementation of the bridge, and the method is not suitable for the situation of the cross direction is not suitable for the ground, but the situation is not suitable for the ground, and the situation is not suitable for the ground.
If the track number of the grid is lower than 4 tracks/month (namely the track number refers to the number of the spliced tracks and the number of the spliced tracks in the grid), the grid is considered to be an area with few flights to fly;
if the track number of the grid is lower than 20 tracks/month, the grid is considered to be a small number of flight path areas, and if the count of a certain direction range exceeds 75% of the total track number, the grid is considered to be a grid with obvious navigation directions;
if the track number of the grid is higher than or equal to 20 per month, the grid is considered to be a more flight path area, and the direction scale with the probability lower than 15% is excluded.
In the following 4 cases, this (current) grid is considered to be a grid with significant heading. 1. A certain direction range count exceeds 75% of the total track number; 2. counting more than 80% of total track number in certain two direction ranges; 3. counting more than 85% of total track number in a certain three-direction range; 4. a certain four direction range count exceeds 90% of the total track number. Other cases consider that this grid (i.e., the current grid) has no significant heading;
step S300: constructing parameters describing the fly-around behavior, and constructing a fly-around discrimination model of the track based on the parameters of the fly-around behavior; and based on the round-the-fly discrimination model of the flight path, carrying out discrimination processing operation on the round-the-fly of the current aircraft.
Analyzing the main scheme of the flight around judging and processing method based on the flight path can know that preprocessing is carried out on the flight path data, and constructing a flight path background field is the basis of preprocessing; dividing a plurality of grids based on the flight trajectory background field to further distinguish navigation directions in the grids; the flight around flight discriminating process based on the flight path improves the accuracy and discriminating efficiency of the aircraft around flight discrimination.
Referring to fig. 3, in a specific technical solution of the embodiment of the present invention, the constructing parameters describing the fly-around behavior, and constructing a fly-around discrimination model of the track based on the parameters of the fly-around behavior includes:
step S310: defining a winding flight coefficient as a winding flight parameter: according to any plurality of track points on the track, defining the flight winding coefficient Ir from any track A to another track point on the flight, and by the pushing, determining the maximum value of the flight winding coefficient among different points in one section of track as the flight winding coefficient Ira of the track;
step S320: defining course continuity deviation as a parameter of a round-trip flight based on a track: determining the flight direction of the aircraft on different track points, and defining the difference between the flight direction of one track point and the flight direction of the other track point as course continuity deviation;
step S330: defining the course actual deviation based on the actual flight path as a primary flight as a parameter: and judging the actual flight direction and the actual flight path of the aircraft, determining the actual flight direction at any two points on the actual flight path, and defining the difference between the two directions as the actual heading deviation.
Constructing parameters describing the fly-around behavior: the method comprises three parameters, namely a winding flight coefficient in the first aspect, a heading continuity deviation in the second aspect and a heading actual deviation in the third aspect;
first aspect: winding flight coefficient: the detour index (i.e., detour coefficient) is the measure of the detour of an aircraft by the ratio of the distance from the origin to the point of actual flight to the distance from the origin to the point of straight line.
And (3) calculating and processing a winding flight index: referring to fig. 4, which is a schematic diagram of a flight trajectory of a virtual flight from a to a D point via B, C points, dAB is a distance between AB points, dAC is a distance between AC points, dAD is a distance between AD points, and by this, a (dab+dbc)/dAC is defined as a wraparound coefficient Ir of the flight from a point to C point,
(dAb+dBC+dCD)/dAD is the flight around coefficient from point A to point D, and so on. And the maximum value of the fly-around coefficients between different points in a section of track is recorded as the fly-around coefficient Ira of the track. Ir is more than or equal to 1, and the larger the winding flight coefficient is, the larger the degree of deviation of the track from the straight line is.
Referring to fig. 5, fig. 5 illustrates a schematic diagram of actual flight paths of different iras, by which the actual flight paths of different iras can be seen by comparison; the abscissa in each single graph represents longitude and latitude, respectively;
second aspect: heading continuity deviation: from the foregoing, it is assumed that normally an aircraft will not change in flight direction suddenly and dramatically, and therefore the difference in aircraft flight direction at each successive track point is used as a criterion for whether the aircraft is maintaining continuous co-directional flight, and also as a measure of whether the aircraft is maneuvering to a great extent.
FIG. 6 is a schematic diagram of heading continuity bias; as shown in fig. 6, when the orange arrow is located at the position, the difference between the flight direction of the aircraft at the point B and the flight direction at the point a is the heading continuity deviation. In the example of the figure, the aircraft has a small angle of right turn.
Third aspect: actual deviation of heading; according to the above assumption, the aircraft will not change the flight direction suddenly and drastically under normal conditions, so the difference between the flight direction of the aircraft at the track point and the actual traveling direction is also used as a standard for whether the aircraft keeps continuously flying in the same direction or not, and is also used as a measure for whether the aircraft is maneuvering in a large extent or not.
FIG. 7 is a schematic diagram of the actual deviation of heading; as shown in fig. 7, when the orange arrow is located at the B point, the flight direction of the aircraft, the blue arrow is the direction of the actual flight trajectories B to C, and the difference between the two directions is the actual heading deviation. Such a difference occurs, indicating that the aircraft is in the middle of a directional adjustment when it is at that point, in the example of the figure, a small angle right turn of the aircraft occurs.
Referring to fig. 8, the method for discriminating the round-trip of the current aircraft based on the round-trip discrimination model of the track includes:
in a specific technical scheme of the embodiment of the invention, before the screening processing operation is performed on the current aircraft around flight based on the flight around discrimination model of the flight path, the method further comprises:
step S340: initial judgment is carried out according to the winding flight coefficient Ira of the current track, and whether the whole track is a normal track is determined:
determining the winding coefficient Ira of the current track, if the winding coefficient Ira of the current track is smaller than the standard winding coefficient threshold value, considering the whole track as a normal track, and then screening and finding out points AD of which the value of the winding coefficient Ira in other tracks is larger than the standard winding coefficient threshold value and the point AD is not the point in the middle between the two points with larger Ir values, and performing the operation of further judging and screening the abnormal track;
referring to fig. 9, in a specific technical solution of the embodiment of the present invention, the method for performing a screening operation on a current aircraft around flight based on the track around flight discrimination model includes:
step S350: further screening and judging, if the distance between the points AD is less than 50 km or if no point which is more than 30 km from the point AD line exists between the points AD, determining that the current two points (namely the points AD) are part of navigation behaviors in the process of hovering of the aircraft, and filtering;
step S360: further screening and judging, and screening out a point AD with the continuous heading deviation and the actual heading deviation of the point AD being greater than 30 degrees, and determining that the point A to the point D possibly have a wraparound phenomenon;
step S370: further judging that if the deviation of the heading of the actual track point from the point A to the point D and the background flight direction angle is smaller than or equal to a standard threshold value (namely, the heading of the actual track point from the point A to the point D is approximately consistent with the background flight direction), the wrapping action from the point A to the point D is considered to be the wrapping action caused by the airspace structure, and the method belongs to the false wrapping operation caused by the airspace structure; and if the angle deviation between the heading of the actual track point from the point A to the point D and the background flight direction is greater than a standard threshold value, determining that the detour from the point A to the point D is a 'real detour and detour operation'.
The analysis of the technical scheme can be as follows: firstly judging whether the course Ira is greater than 1.2, if the course Ira is less than 1.2, considering that the whole course is in normal flight, then finding out a point AD with an Ir value greater than 1.2 in the course, wherein the AD is not a point between two points with a greater Ir value, if the distance between the AD is less than 50 km or a point with no distance of more than 30 km from an AD line exists between the AD, considering that the two points can be part of the aircraft in spiraling, and the continuous deviation of the heading of the AD point and the actual deviation of the heading are both greater than 30 degrees, the phenomenon of winding from the point A to the point D can exist, but if the heading of the course from the point A to the point D is approximately consistent with the background flight direction, the winding from the point A to the point D is considered to be caused by an airspace structure.
The actual route of the flying phenomenon is further screened, so that whether the actual route is the actual flying operation or the false flying operation caused by an airspace structure is judged, and the screening treatment of the actual flying operation and the false flying operation can be further realized on the basis of a flying judgment model of the flight path;
flight path-based wraparound discrimination model: firstly judging whether the course Ira is greater than 1.2, if the course Ira is less than 1.2, considering that the whole course is in normal flight, then finding out a point AD with an Ir value greater than 1.2 in the course, wherein the AD is not a point between two points with a greater Ir value, if the distance between the AD is less than 50 km or a point with no distance of more than 30 km from the AD line exists between the AD, considering that the two points can be part of the aircraft in spiraling, and the continuous deviation of the heading of the AD point and the actual deviation of the heading are both greater than 30 degrees, the phenomenon of winding from the point A to the point D can exist, but if the heading of the course from the point A to the point D is approximately consistent with the background flight direction, the winding from the point A to the point D is considered to be the false winding behavior caused by an airspace structure.
Example two
Referring to fig. 10, correspondingly, a second embodiment of the present invention provides a flight around discriminating processing system based on flight paths, which includes a background field constructing module 10, a grid processing module 20, and a model processing module 30, wherein:
the background field construction module 10 is configured to pre-process the track data to construct a flight path background field:
the grid processing module 20 is configured to divide a plurality of grids based on the flight path background field, and determine the significance of the current navigation direction of the plurality of grids according to the ratio of the track number count to the total track number of the current grid in the preset direction range:
the model processing module 30 is used for constructing parameters describing the fly-around behavior and constructing a fly-around discrimination model of the flight path based on the parameters of the fly-around behavior; and based on the round-the-fly discrimination model of the flight path, carrying out discrimination processing operation on the round-the-fly of the current aircraft.
The flight path-based flight around judging and processing system provided by the embodiment of the invention can execute the flight path-based flight around judging and processing method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the executing method.
Example III
Accordingly, a third embodiment of the present invention provides a computer-readable storage medium storing a program or instructions for causing a computer to execute the steps of the track-based flight around determination processing method as described.
In addition to the methods and systems described above, embodiments of the present invention may also be a computer program product comprising computer program instructions which, when executed by a processor, cause the processor to perform the steps of the flight path based flight around determination processing method provided by any of the embodiments of the present invention.
The computer program product may write program code for performing operations of embodiments of the present invention in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.
Furthermore, embodiments of the present invention may also be a computer-readable storage medium, on which computer program instructions are stored, which, when executed by a processor, cause the processor to perform the steps of the flight path-based flight around determination processing method provided by any of the embodiments of the present invention.
The computer readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present application. As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements.
It should also be noted that the positional or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.
Claims (10)
1. A flight around discriminating processing method based on a flight path is characterized by comprising the following steps:
preprocessing flight path data to construct a flight path background field:
dividing a plurality of grids based on the flight path background field, and judging the significance of the navigation directions of the current grids according to the proportion of the track number count and the total track number of the current grids in a preset direction range:
constructing parameters describing the fly-around behavior, and constructing a fly-around discrimination model of the track based on the parameters of the fly-around behavior; and based on the round-the-fly discrimination model of the flight path, carrying out discrimination processing operation on the round-the-fly of the current aircraft.
2. The method according to claim 1, wherein the preprocessing of the track data to construct a flight path background field comprises the following steps:
preprocessing track data: performing track splicing on the discrete track data by using the flight number and the aircraft number, and then splitting the track points in the same track for more than 10 minutes to obtain a plurality of split track points;
meanwhile, the spliced flight path is screened and selected to select the part with the flight height above the preset height;
and constructing a flight path background field on a plane based on the plurality of spliced tracks after screening.
3. The method of claim 2, wherein the predetermined height is 3000 meters.
4. The method according to claim 3, wherein a plurality of grids are divided based on the flying trace background field, and the significance of the navigation directions of the current grids is judged according to the proportion of the track number count to the total track number of the current grids in a preset direction range:
if the track number of the grid is lower than 4 per month, the grid is considered to be an area with few flights to fly;
if the track number of the grid is lower than 20 tracks/month, the grid is considered to be a small number of flight path areas, and if the count of a certain direction range exceeds 75% of the total track number, the grid is considered to be a grid with obvious navigation directions;
if the track number of the grid is higher than or equal to 20 per month, the grid is considered to be a more flight path area;
in the following 4 cases, this grid is considered to be a grid with a significant direction of travel; a certain direction range count exceeds 75% of the total track number; counting more than 80% of total track number in certain two direction ranges; counting more than 85% of total track number in a certain three-direction range; a certain four direction range count exceeds 90% of the total track number.
In other cases, the grid is considered to have no significant heading.
5. The method according to claim 4, wherein the constructing a parameter describing the fly-around behavior, constructing a fly-around discrimination model of the track based on the parameter of the fly-around behavior, comprises the following operation steps:
defining a winding flight coefficient as a winding flight parameter: according to any plurality of track points on the track, defining the flight winding coefficient Ir from any track A to another track point on the flight, and by the pushing, determining the maximum value of the flight winding coefficient among different points in one section of track as the flight winding coefficient Ira of the track;
defining course continuity deviation as a parameter of a round-trip flight based on a track: determining the flight direction of the aircraft on different track points, and defining the difference between the flight direction of one track point and the flight direction of the other track point as course continuity deviation;
defining the course actual deviation based on the actual flight path as a primary flight as a parameter: and judging the actual flight direction and the actual flight path of the aircraft, determining the actual flight direction at any two points on the actual flight path, and defining the difference between the two directions as the actual heading deviation.
6. The method of claim 5, further comprising, prior to performing the screening process operation on the current aircraft's wraparound based on the wraparound discrimination model of the flight path:
initial judgment is carried out according to the winding flight coefficient Ira of the current track, and whether the whole track is a normal track is determined:
and determining the winding coefficient Ira of the current track, if the winding coefficient Ira of the current track is smaller than the standard winding coefficient threshold value, considering the whole track as a normal track, and then screening and finding out points AD with the value of the winding coefficient Ira larger than the standard winding coefficient threshold value in other tracks and the point AD not being the middle point between the two points with larger Ir values, and performing the operation of further judging and screening the abnormal track.
7. The method of claim 6, wherein the discriminating the current aircraft around flight based on the track around flight discrimination model comprises:
further screening and judging, if the distance between the points AD is less than 50 km or no points which are more than 30 km away from the connecting line of the points AD exist between the points AD, determining that the current two points are part of navigation behaviors of the aircraft in hovering for filtering;
further screening and judging, and screening out a point AD with the continuous heading deviation and the actual heading deviation of the point AD being greater than 30 degrees, and determining that the point A to the point D possibly have a wraparound phenomenon;
further judging that if the deviation of the heading of the actual track point from the point A to the point D and the angle of the background flight direction is smaller than or equal to a standard threshold value, the detouring from the point A to the point D is considered to be the detouring behavior caused by the airspace structure, and belongs to the false detouring operation caused by the airspace structure; and if the angle deviation between the heading of the actual track point from the point A to the point D and the background flight direction is greater than a standard threshold value, determining that the detour from the point A to the point D is a 'real detour and detour operation'.
8. The method of claim 7, wherein the standard wrap-around coefficient threshold has a value of 1.2.
9. The flight around discriminating processing system based on the flight path is characterized by comprising a background field constructing module, a grid processing module and a model processing module, wherein:
the background field construction module is used for preprocessing the flight path data and constructing a flight path background field:
the grid processing module is used for dividing a plurality of grids based on the flight path background field, and judging the significance of the navigation directions of the current grids according to the proportion of the track number count and the total track number of the current grids in a preset direction range:
the model processing module is used for constructing parameters describing the fly-around behavior and constructing a fly-around discrimination model of the flight path based on the parameters of the fly-around behavior; and based on the round-the-fly discrimination model of the flight path, carrying out discrimination processing operation on the round-the-fly of the current aircraft.
10. A computer-readable storage medium storing a program or instructions that cause a computer to execute the steps of the track-based flight detour discrimination processing method according to any one of claims 1 to 8.
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